Woo-dae

Woo-dae (died 645 AD) was a Goguryeo officer who served under Yang Manchun during the Goguryeo-Tang War. During the Siege of Ansi, he and his men tunneled under the Chinese siege mound, and he volunteered to sacrifice himself by chopping down the supports under the mound, which would lead to the Chinese mound collapsing and killing both the Chinese soldiers on top and the Korean engineers below. Woo-dae bade farewell to his senile mother and asked Yang to take care of her, and he and his team successfully destroyed the mound; Woo-dae congratulated his men on their good work before they all perished.